I have to admit that I am limited in my knowledge of the available powders out there, so when you refer to 3F Blackpowder, is that an alternate powder such as Pyrodex or 777? Same for Gorex and Blackmag 3? Or is that just a brand name for a particular blackpowder?

I am familiar with 777, Pyrodex, and Jim Shockeys Gold...just haven't heard of the others.

Thanks